Hair-clippers



l(No Model.)

G. H. COATES.l

HAIR GLIPPBRS.

No. 551,617. Patented Dec. 17, 1895.

UNITED STATES' PATENT OFFICE.

GEORGE Il. OOATES, OF WORCESTER, MASSACHUSETTS.

HAIR-GLIPPERS.

SPECIFICATION forming part of Letters Patent No. 551,617, dated December17, 1895. Appleman med April 29,1893. seria N. 472,380. (N man.)

To all whom t may-concern.:

Be it known that I, GEORGE H. COATEs, a citizen of the United States,residing at Worcester, in the county of Worcester and State ofMassachusetts, have invented a new and useful Improvement inHair-Clippers, of which the following is a specification, accompanied bydrawings forming a part of the same, in which Figure l represents a topView of a hairclipper embodying my invention. Fig. 2 is a centralsectional view on line 2 2, Fig. l. Fig. 3 represents a bottom view.Fig, 4 is a bottom view with the loweror stationary cutting-plateremoved and showing` the movable cutting-plate and the coiledactuating-spring. Fig. 5 is a bottom view with both the stationary andmovable cutting-plates and actuating-spring removed. Fig. 6 is a bottomView of the iiXed and movable handles. Fig.

7 is a bottom view of the iixed handle with washer by whichv the movablehandle is held in position; and Fig. 1l represents a central sectionalview of the headon line 1l l1, Fig.

-. '7, in `the direction of the arrow l.

Similar letters refer to similar parts in the different gures.

My invention relates to certain improvements in hair-clippers forbarbers use, having for its object to secure greater efficiency ofoperation and simplicity of construction g and it consists in theseveral features of construction hereinafter described, and specificallypointed out in the annexed claims.

The hair-clipper forming the subject of my invention, like those now ingeneral use, comprises a iiXed handle having one end eX- panded to forma head, to which the stationary plate is attached, and within which theoperating parts of the machine are housed;

a movable or lever handle, by which the movable cutting-plate is movedin one direction; an actuating-spring with its tension applied to themovable handle for the purpose of reversing its motion and that of themovable cutting-plate; stationary and movable cutting-plates, and meansfor clamping the movable and stationary cutting-plates together, v andthe operation of these several parts is similar to that of hair-clippingmachines now in common use, my present invention relating to certainchanges in the details of construction by which I secure severaladvantages, as hereinafter set forth. e

Referring to the drawings, A denotes the fixed handle having one endexpanded or enlarged to form the head A/, which is chambered upon itsunder side, as represented at A2, Fig. 7 to receive the operating partsof the machine. The head A is provided with a central hole A3 to receivethe tighteningbolt B, spurs A4 A4 entering holes in the stationarycutting-plate, and at the front edge with a lip A5, adapted to enter alongitudinal groove in the upper side of-the movable cutting-plate. Thehead is also provided with an annular recess A6 counterboredconcentrically with the hole A5 and also with. the plane surfaces A7,A7, and AS lying in the same plane and forming seats for a plate orwasher D, by which the movable handle is held. The movable handle C isprovided with an annular boss C', fitting the annular recess AG, andupon the opposite or lower side with an annular boss C2, upon which isplaced a plate or washer D, Fig. lO. The washer D is provided with acircular'hole D', tting the boss C'2 and forming one of the bearings forthe movable handle, and also with the wings D2 D2, provided with roundedends littingthe semicircular recesses D3, which are milled in the headAVto hold the washer D with the center of the hole D coincident with theaxis of the movable handle O. The wings D2 rest upon the seats A7 A7 andthe rear edge of the' plate D rests upon the seat A8. The forward edgeof the plate D is provided with a notch D4, through which the curved armO3 of the movable handle passes and the notch is made long enough toallow a limited angular motion to the movable handle O, the edges D5 D5serving as stops to limit the movement of the handle. A

Upon the plate D and around the annular boss (L2 is a coiled spring Ehaving one end E/ bearing against the movable handle O and the oppositeend E2 held in one of the notches E3, formed in the lower edge of thecurved ICO wall E on the head A', so the tension of the spring will beapplied to hold the movable handle at one end of its angular' movement.

The movable eutting-plate F is provided with a longitudinal groove F' toreceive the lip A5 upon the forward edge of the head, the lip serving asa guide to control the movement of the cutting-plate F in a straightline. The eutting-plate F is provided with a rectangular opening W toreceive the end of the curved arln Cf; of the movable handle, by which areciprocating motion is imparted to the cutting-plate F, in onedirection, as the handles are brought together by the operator, and inthe opposite direction bythe action of the coiled spring E.

A stationary cuttingplate G is attached to the head A' by thetightening-bolt B and nut Il. The stationary plate at its forwardsection bears against the under side of the movable cutting-plate and atits rear edge the plate G rests upon a spur G', which allows thepressure which is applied to the stationary cutting-plate, by tighteningthe bolt B, to be distributed equally throughout the length of themovable cutting-plate. The bolt B is provided with a head B', consistingof the two wings B2 B2, which are inserted through the opening G2 inthestationary cutting-plate and are then turned at right angles with theopening to engage the plate. The sides B B3 next the plate G are curvedand bear against curved seats G3, formed in the stationary eutting-plate, so as to allow a slight rocking motion of the bolt-head, inorder to maintain an equal pressure upon both wings, in case thestationary cutting-plate is not at right angles with the axis of thebolt. A milled nut ll is applied to the upper end of the bolt B, whichpasses through the hole in the movable handle, made slightly larger thanthe bolt, so that the movable handle will not bear upon the bolt B, butupon the annular boss C' turning in the recess AG and upon the annularboss C2 turning within the hole D' in the plate D. By loosening the nutH and turning the bolt B one-quarter of a revolution, so as to bring thewings B2 in alignment with the opening G2, the stationary cutting-plateG, the movable cutting-plate F, the coiled spring E, the washer D andthe movable handle C can all be removed from the machine, rendering allthe opera-ting parts easily aecessible, for the purpose of sharpening,or repairing, and greatly facilitating the assembling oi' the partstogether during the process of manufacture.

The coiled spring Eis preferably wound in a helical form so the smallestcoil will fit the annular boss C2, and the largest coil will rest uponthe stationary cutting plate G, the spring being so wound that thesmallest coil will bear against the under side of the plate D and thelargest will bear against the upper side of the stationarycutting-plate, so that when the stationary eutting-plate is held inposition by the bolt B the coiled spring will serve to hold the washer Din the position shown in sectional view in Fig. 2.

I have described the washer l) as provided with the opposing edges D'5Di arranged to serve as stops to limit the angular mot-ion of themovable handle C; but it will be obvious that shoulders J .l can beformed in the head A' which will perform the same function, the objectbeing to provide stops to limit the angular motion of the movable handleC and the reciprocating movement of the movable cuttingplate.

4What Iclaim as my invention, and desire to secure by Letters Patent, is

l. rlhe combination with stationary and movable cutting plates, oi afixed handle, enlarged at one end to form a head A', said head beingchambered to :receive the operating parts of the clipper, a stationaryplate as D, held in said head, a movable handle inelosed between saidplate and said head, and having a boss C' journaled in said head and aboss .C2 journaled in said plate, said movable handle engaging saidmovable plate, substantially as described.

2. The combination with a head A' chambered to form a housing for theoperating parts of the machine, and provided with the recesses D3, D3and seats A7, A7 and A8, of a plate D provided with wings D2,D2 fittingsaid recesses and having an open ing D' and a movable handle C having aboss held in the openin D', substantially as. described.

3. The combination with a head A', having seats to receive a stationaryplate,oi a stationary plate as D, a movable handle held between saidhead and said stationary plate,a movable cutting plate engaged by saidmovable handle, a stationary cutting plate attached to said head, and acoiled spring interposed between said stationary cutting plate and saidstationary plate D, whereby said plate D is held against the seatsformed in the head A', substantially as described.

et. The combination of thehead A' provided with seats for a plate, orwasher D, a pla-te, or washer, held in said seats, a stationary cuttingplate attached to said head and a coiled spring held between saidstationary cutting plate and said plate, or washer, whereby said plate,or washer, is held against its seats and a movable handle provided witha boss journaled in said plate, or washer, substantially as described.

5. The combinationv of a fixed handle,a movable handle pivoted in saidfixed handle, a plate, or washer held by said fixed handle an d.provided with a bearing-for said movable l1andle and having anoteh toreceive the aetuat ing arm of the movable handle, and with the stops D5,D, by which the motion of the movable handle is limited, substantiallyas described.

6. The combination with a fixed handle, provided with a head A and withstationary and movable cutting plates, of a plate D held in said head, amovable handle inserted be- TOO tWeen said plate D and said head andengaging the movable cutting plate, abolt B extending through saidstationary Cutting plate and said head, a tightening nut H held on saidbolt and a coiled spring placed between said plate D and said stationarycutting plate and concentrically With the axis of the movable handle,said spring being operatively Connected With said movable handle so itstension Will ro be applied by a torsional strain to aetuatesaid movablehandle, and said spring, and having its tension applied in the line ofits axis to hold said plate D in position, substantially as described.

Dated this :21st day of April, 1893.

GEORGE H. COATES. Witnesses:

RUFUs B. FOWLER, EMMA KESTER.

